3
Do not take the cover off the lens unless necessary.
Keep away from heating appliances and central heating.
Do not apply excessive force to lens assembly, agile
elements and thread connections.
Due to considerable optical magnification of the eyepiece
some small structures inside the tube coating in the form
of dark and/or white points may be seen in the field of
view; this does not affect the capabilities of the device;
The device resolution may change from the center
towards the perimeter of the field of view. This is an
inherent feature of the image tube type utilized in the
device.
Remove the battery during periods of non-operating and
when storing the device for a long period of time.